Textured polyester

The upper curve of the textured polyester is typical for crimped fibers of doubleknit fabric and sweaters. Here, the... 

In Fig. 27.1 and example is given of the position of wool and textured polyester in a well-defined application sweaters. Almost the only points in favour of wool are its appearance and comfort textured polyester does not score such high marks in these properties, but its care properties are considerably better than those of wool. 

Textured polyester has mainly penetrated into a consumer category where, in addition to appearance, special value is attached to ease of care properties (middle price class). 

Gives a non-pilling, non-fuzzing finish to textured polyester knits... 

A finish on acrylic, foam-backed drapes A permanent finish for polyester fiberfill A non-pilling, non-fuzzing finish for textured polyester knits... 

Last rinse lubricant for spun and texturized polyester yarn for sewing thread. 

These fibres cannot be heat-set in the conventional sense since the fibres are readily stretched or deformed at temperatures above 75 C. The degree of stability, however, can be obtained by passing these fabrics through a hot air stenter at about 120 C. Temperatures above 120 C may cause discolouration of the fabrics. For blended fabrics containing acrylic and modacrylic fibres higher heat-setting temperatures may be required. Knitted fabrics produced from a feeder blend of acrylic and textured polyester fibres, are heat-set at about 160 C for 30 sec. 

The most common threads for stitching knitted sportswear fabrics are textured polyester (Figure 6.31) or textured nylon (Figure 6.32). These threads offer excellent seam coverage and seam elasticity. They also have properties that are very soft against the skin making them ideal for sportswear and underwear. 

Five plain woven fabrics, two polyester fabrics, and three cotton fabrics were examined in a yam pullout test, as schematically shown in (Figure 1(a)). Characteristics of these fabrics are presented in (Table 2). Sample PETl is consisted of twisted multi filaments of polyester as weft and warp yams. Sample PET2 has intermingled polyester multi filaments as warp and textured polyester multi filaments as weft yams. The COTl is a scoured cotton fabric with ringspun yams as wefts and warps. The COT2 is a bleached cotton fabric with ringspun weft and warp yams, and finally COTS is a bleached cotton fabric with open-end spun wefts and warps. 

In this study, we used a number of elastomeric threads to construct small-diameter grafts.i2 Twelve different woven structures were developed. The warp used was a 34 filament textured polyester yam of 111 dtex. Three different weft threads were used. One was a 311 dtex spandex core air entangled with a 78 dtex multifilament polyester, providing a total linear density of 506 dtex. The others were Aorlasten polyurethane monofilament yams of 467 and 311 dtex linear densities. Since the filling yarns had a range of compositions and linear densities, their resultant properties were quite different, as shown in Table 14.3. 

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